PLATE 78 



Effect of presoak method used with formalin i to 320 on wheat tinder field conditions: 

 I. Poole; 2. China; 3. Bluesteni; 4. Fulcaster; 5. Marquis; 6. Fife. 

 A.— Eight hundred seeds in four rows, soaked in water 10 minutes, kept moist 

 6 hours, soaked in formalin 10 minutes, kept moist 6 hours, dried overnight. 



B.— Eight htmdred seeds in four rows, soaked in formalin i to 320 for 10 m.inutes, 

 kept moist 6 hours, dried overnight. 



C. — Eight hundred seeds in four rows, control. 



